Grease and oil dispensing apparatus



H. M.V BOE. GREASE AND OIL DISPENSING APPARATUS.

APPLICATON FILED MAR.12. |919.

Patented leb. Z2, 1921.

" Mfrs/won l /YTTRIYEYJ port 8 leading UNITED STATES PATENT OFFICE.

GREASE AND OIL DIBPENSING APPARATUS.

Specicatlon of Letters Patent.

Patented Feb. 2 2,

Application Bled Hatch 18, 1919. Serial No. 282,189.

To all/whom it may concern..-

Be it known that I, HANS M. Bon, a c1 t1 zen of the United States, resident of Minneapolis, county of Hennepin, State of Mlnnesota, have invented certain new and useful Improvements in Grease or O11 Dispensing Apparatus, of which the followmg 1s a specification.

The object of my invention is to prov1de an attachment for a rease or oil tank or container by means o which the lubricant can be drawn out of the tank and discharged through a suitable nozzle into a bearing, differential or any other device where the lubricating 4materlal is needed.

A further ob'ect is to provide an apparatus which will simple and inexpensive in construction and easilly operated.

Other objects of t e Invention will appear from the following detailed description.

The invention consists generally in various constructions and combinations, all as hereinafter described and particularly pointed out in the claims.

In the accompanying drawings forming part of this specification,

Figure 1 is a side view, partiell tion, of a dispensing apparatus witli vention apphed thereto,

Fig. 2 is a vertical sectional view through the tank attachment,

3 and 4 are detail views, showing the nzeta ic diskfor holding the piston cups in ace.

in secmy 1n- In the drawing, 2 represents a tank or container having a leg 3 and caster supports 4 on which the tank is moved conveniently from place to place. 5 1s a cover, suitably secured to the top of the tank and provided on one side with a projecting bracket 6 havlng a vertical socket 7 therein. At the bottom of the tank is an outlet or discharge to a passage 9 which terminates in an el ow 10 into which a nip 1e 11 is tapped. 12 represents a pump hea connected with the other end of the nipple and containin a chamber 13, the nip le having a seat 14 or a ball valve 151 which) normally .rests by gravity on the seat and closes the nipple. pump barrel 15 is seated on the top of the pump head 12 and communicates therewith through a passage 16, a, pin 17 being mounted in the walls of said head and brid' ing said passage to prevent the valve 15n fgrom being drawn up into the barrel on the upstroke of the plunger. A pin 17* is also provided in the wall of the head 12 to iimit the movement of the ball valve 15 toward the discharge port of the head. A piston rod 18 is mounted in said barrel and has a head 19 at its lower end that is tapped t0 receive a bolt 20 and piston cups 21 are placed back to back on said bolt and seated against saidl head, being clamped securely thereon by the tightenin .of said bolt. These cups are preferably o leather or some other sultable flexible material and their edges are held in contact with the inner walls of the barrel b suitable means, preferably the metallic isks 22, preferably of brass, having radial slits 23 in their edges to form a series of spring-like ton es 24 which,'when the edge ofthe disk is folded, lap one another slightly on one side, as indicated in Fig. 3 and have the function of holding the flexible edges of the cups against the walls of the barrel with a yielding pressure. The disks are madle and pressed outwardly on the cups when the clamping bolt is tightened and the disks and cups drawn together.

In makin these brass disks, I cut a series of radia slits in the edges thereof and then, when the disk is folded to the form shown in Fi 4, the abutting edges of the disks will .sli e by each other, said edges being slightly o'set in the act of cuttin the slits, so that it is only necessary to fol the disk to the form shown in Fig. 4, when the tongues 24 will assume the position illustrated in Fig. 3. These disks I regard as an important feature of the invention.

Above the barrel 15 is a housing 25 in which a shaft 26 having an operating handle 27 is journaled and a pinion 28 is mounted on said shaft to engage the teeth 29 of the iston rod 18. A. hollow guide 30 is provided above the housing 25 forming a continuation of the barrel 15 and conslsts preferably of a section of pipe inserted into the socket 7 and] held rigidly thereby in line with the barrel to receive the rod 18 when the piston is raised b the movement of the operating crank 27. he lunger rod andits rack are wholly inclosed y the barrel and the hollow guide 30 and are thereby4 made dirt and dust-proof, and the upper end of the pipe 30, radially mounted in the cover 5, serves as a convenient handle for moving the tank from place to place. By mounting the iston ro in this way I not only thorough y protect it but avoid the necessity of projecting the rod' a consider' able distance above the tank, as fre uently is done in pump attachments of this ind The head 12 has a port 31 therein communicating with a chamber 32 and provided with a seat 33 for a ball valve 34 which normally rests by gravity on said seat and closes the port. A section of hose 35 is connected with the chamber 32 and is provided with a nozzle 36 and a controlling valve 37. The wall of the chamber 32 is provided with prongs or stops 38 in the path ofthe ball 34 to arrest movement of the ball when it is raised from its seat by the pressure of the lubricating material and allow such material to fiow around the ball into the hose section 35 and from thence to the nozzle and be discharged. This head and its connections are of ordinary pump construction to which I make no claim.

In operation, the crank 27 is revolved to raise the plunger. The valve 15 is thereby lifted from its seat and a; quantity of the lubricating material is drawn from the tank ulp into t e barrel 15, the valve 34 being c osed at this time. As soon as the suction of the plunger ceases, the valve 15* will return to its seat and be forced thereon when the piston begins its downward movement and the lubricating material accumulated in the barrel will flow down through thechamber 13 and up through the port 31 into the chamber 32 and from thence to the nozzle the rapidity of the dischar depending, of course, upon the speed o `descent of the plunger.

Duri the movement of the plunger the spring disks 22 through their yielding contact with the flexible cups 21, will form a close joint between said cups and the walls of the barrel and insure the iston performing its proper function in t e operation of the pump.A The amount of lubricant ischarged may be approximately determined by the stroke of the pump. I do not, however, rely upon this means for determining the quantity of lubricant discharged, as provision is made iii{ the tanki 2 t rou-gh the medium of a,- piston in the tank and an indicator on the cover 5 (not shown) through the movement of which the discharge of 'lubricant from the tank is accurately measured. This piston and indicator form the subject matter of prior applications for U. S. patents filed by me and I make no claim therefore to these devices in this case and have not thought it necessary to incorporate them in the drawings.

I claim as my invention:

1. The combination, with| a tank adapted to contain a lubricant and havin a discharge passa e at its lower end an a pipe connection t erefor, of a pump having means at its lower end for communication with said pipe connection and rovided with a barrel and piston and rod t erein, a pipe forming an upward continuation of said barrel concentric therewith and having a bearing at its upper end on said tank and formin a convenient handle for -moving the tan said pum also having a hose connection and nozz e therefor and suitable valves and means for reciprocating said piston rod and piston in said barrel and pipe to fill and empty said barrel.

2` The combination, with a tank adapted to contain a lubricant and having a discharge port in its bottom, of a pump arranged outside the walls of said tank and adjacent thereto and having a pipe connection at its lower end with said port, a pump barrel mounted on said pipe connection, a hollowi guide forming a vertical continuation of said pump .barrel and having its upper end rigidly mounted in the top of said tank, a piston in said barrel having a toothed rod slidable in said guide and con gaging the teeth of said rod and an operating crank for said'shaft, a hose connected with the lower portion of said pump and having aI discharge nozzle and valves for regulating the delivery of the lubricant from said tank to said barrel and to said hose when said piston is reciprocated.

3. The combination, with a portable tank adaplted to contain a lubricant and ha a dise arge passage at its lower end an a pipe connection therefor, of a pump having means at `its lowerend for communication with said pi e connection and provided with a barrel an piston and rod therein, a guide for said rod forming an upward continuation of saidV barrel and having a bearing at its upper end on said tank and forming a convenient handle for moving said tank, said pum also hav' .a hose connection and nozzle t erefor an suitable valves and means for reciprocating said piston rod and piston in said barrel and guide to fill and empty` said barrel. f

4. he combination, with a portable tank ada ted to contain a lubricant and having a disc aiige port, of a piump arranged outside the' wa s of said tan and adjacent thereto and having a pipe connection at its lower end with said port, a pump barrel mounted on said pipe connection, a guide connected with said barrel and' secured to the cover of said tank and forming a hand p for moving said tank a piston in sai barrel having a rod slidainle in said guide, a pinion 6 geared to said rod and having an operating crank, ahose connected with the lower portion of said pump and having aA discharge nozzle, and valves for regulating the delivery of the lubricant from said tank to said barrel and to said hose when said piston is 10 reciprocated.

In witness whereof, I have hereunto set my hand this 27 th da)T of Februar 1919.

HANS BOE. 

